Feeding device.



PATENTED JULY 16, 1907.

No. 860,371rv G. HALLIDAY.

FEBDING DEVICE.

APPLICATION FILED Nov.15.1eo5.

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A TTOHNE YS THE Nonms Prrsns co.. wAsNma-raN, u1 c.

GEORGE HALLIDAY, OF SUPERIOR, WISCONSIN.

FEEDING DEVICE.

Specification of Letters Patent.

Patented July 16, 1% O7,

Application filed November 15,1905. Serial No. 287.421.

To 'whom it 'may concern:

Be it known that I, Gnoimn Hammam a citizen of the United States, and aresident of Superior, in thc county of Douglas and State of Wisconsin,have invented lanew and Improved Feeding Device, of which thc followingis a full, clear, and exact descriptionA y The invention relates todevices for feeding flour stock and other materials in a thin stream toa machine for further treatment of the material.

The object of the invention is to provide a new and improved feedingdevice arranged to insure the formation of a thin and uniform stream ofthe lmaterial throughout the width of the feed-box and without danger ofblocking or choking up by the stock or foreign materials that may be inthe stock.

The invention consists of novel features and parts and combinations ofthe same which will be more fully described hereinafter and then pointedout in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure .l is a sectional side elevation of the improvement as applied toa double roller mill; Fig. 2 is a sectional plan view of the same, onthe line 2 2 of Fig. l;

and Fig. 3 is a transverse section of the same, on the line 3 3 of Fig.l.

The improved feeding device, as shown in the drawings, is applied to adouble roller mill, and for this purpose the feed-box A is provided witha transverse partition B 'for dividing the feed-box A into two chambersC and C into which the material is discharged through suitable feedingspouts D and D. In the chambers C and C are arranged adjustablehold-back gates E and E for regulating the iiow of the material downonto the distributing loo-ard F which forms the bottom for both chambersC and C, and is mounted to slide transversely on suitable guideways G,as indicated in Fig l. The distributing board F in each chamber C and Cis inclined downwardly toward the corresponding feed-rolls H andII,i\'itl1'\vl1ich the outer sides of the distributingboard are inperipheral contact at the inner sides of the feed-rolls, as plainlyshown in Fig. l. Both feed-rollsH and 1I rotate in unison, and for thispurpose their shi-lifts H2 and Hii are connected with each other bypulleys I and I and a belt I2, and on the shaft Hi* is secin'ed a pulleyH4 connected by a belt with other inachinery for imparting a rotarymotion to the feed-rolls yI-Iy and H.

The distributing board F has a transverse shaking or reciprocatingmotion, and for this purpose one outer end of the board F is providedwith a pin F (see Fig. 2) engagingthe slotted end J of one arm of a bellcrank lever .I fulcrumed at .I2 on the frame of the `feeding device,theother arm of the said bell crank lever .I being connected with theeccentric rod J of an eccentric .I arranged on the shaft H2. Thus, whenthe machine is in motion, the eccentric J, rod J and bell crank lever Jimpart a transverse shaking motion to the dis; tributing board F.

Above the distributing board F and in the rear of the feed-rolls H andIl are arranged feed-gates K and K which operate in conjunction with theshaking distributing board F, to insure the formation of an even anduniform stream of the stock or other material passing to and over thefeed-rolls H and H. Each of the gates K and K is connected by hinges Lwith a board N adjustably connected to a support A for the feedbox A,preferably by the use of screws O engaging one of series of apertures Nformed in the board N (see Figs. l and 3). Each of the gates K and K isalso provided with a suitable weight P for holding the gate withsuficient pressure against the stock in the rear of the gate to insurethe formation of an even flow, according to the amount of materialallowed to pass down onto the distributing board F bythe hold-back gateE or E.

By having the distributing board F reciprocating in a transversedirection, it is evident that the stock flowing down on the distributingboard from the hold-back gate E or E is properly distributed throughoutthe width of the distributing board, and by having the gate K or K abovethe distributing board and a distance in the rear of the correspondingfeed-roll H or II, it is evident that only a certain amount of materialis allowed to pass over the feed-roll so that a stream of uniformthickness and extending tlnoughout the length of the feed-roll isproduced, to insure a proper feeding of the material to the roller millor other machine in which the material is to be further treated.

It is understood that the weighted gate K or K holds the material backuntil it extends the entire width of the feed-box, and then the gatebegins to open gradually until the desired amount of the material passesover the corresponding feed-roll H or H in a uniform stream. At thistime the gate is weighted to maintain it in such position, and if thefeed through the spouts D, D, is greater than the feed under the gatesK, K the material backs up and interrupts the flow of the same throughthe gates E, E, the latter serving to relieve the pressure of thematerial in the rear of the gate K or K. Thus, if the gate K or K isweighted to allow say five bushels of wheat per hour to pass throughwith a flee flow, and it is desired to allow say only two and onehalt`bushels of wheat per hour to pass the gate K or K then it is necessaryto apply correspondingly more weight to the gate, so that the wheatbacks up and only two and one-half bushels per hour can pass the gate,although the gate E or E may be set to more than two and one-halfbushels.

It is understood that the hold-back gates E and E hold back all thesurplus or abnormal flow of stock, the gates being set or adjustedrelative to the partitions B according to about the amount of thematerial required.

It will be noticed that the feed spout is arranged at one side of thebox or chamber and the feed roll at the other side, and' that thehorizontal feed gate coperates with the adjacent side of the box to makean opening for the passage of the grain7 and thatsaid gate delivers tothe opposite side of the board from the roll.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:-

1. A feeding device comprising a feed box having a central transversepartition, feeding spouts communicating- 'with the box on each side ofthe partition, feed rollers journaled transversely of the box at theends thereof, a

-transversely reciprocating distributing board forming the bottom of thefeed box, said board having its center beneath the partition, andinclining downwardly on each side therefrom, the free edges of the boardbeing in contact with the peripheries of the feed rolls, a horizontaladjustable feed gate arranged below each of the feed spouts and spacedapart vertically therefrom, brackets depending within the feed box oneach side of the partition and between the horizontal gates and the feedrolls, a feed gate hinged to each of the brackets and normally depending vertically therefrom, the free edges of said gates being spacedapart from the upper face of the distributing board, and a weightconnected with the outer face of each of said gates.

2. A feeding device comprising a feed box, a feeding spoutcommunicatingwith the box at one side thereof, a feed roll at the otherend of the box, an inclined distributing board having its edge inContact with the periphery of the roll, a hinged feed gate coperatingwith the distributing board, and arranged between the feed spout and thefeed roll, an adjustably mounted horizontal feed gate below the feedspout and coperating with the side of the

